1917 

 BIOLOGY 



Friday 2 p.m. Two hours 



Answer two questions from each group, and four additional questions which may be 

 selected from any of the groups. 



Group I 



1. Describe the microscopic structure of the leaf of a flowering plant, indicating 



the function of each part. 



2. Name and describe the reproductive organs in a flower and in a fish (or frog). 



3. Describe fully three adaptations of plants for seed dispersal. Give illus- 



trative examples. 



4. Compare the circulatory system of man and some animal you have studied, 



pointing out the resemblances and differences. 



5. Compare the sense organs of an insect and of a vertebrate. 



Group II 



6. Explain how the inorganic substances in the soil are absorbed and transported 



to the leaf. 



7. What are the differences in the method of nutrition in a green plant and in 



man? 



8. Show how each of the following organs contributes to the maintenance of 



life and health: salivary glands, pancreas, liver, kidneys, small intestine? 



9. (a) Give the distinguishing characteristics of five general groups of animals. 

 (b) Give the distinguishing characteristics of five general groups of plants. 



JO. Describe the life history of either a flowering plant or a frog. 



Group III 



11. Show how bacteria are essential to the life of man. 



12. Explain fully the ways in which a knowledge of biology might be of impor- 



tance to (a) the farmer, (b) the baker, (c) the butcher, (d) the doctor. 



13. What is the economic importance of five of the following organisms: owl, 



flax, skunk, toad, yeast, white daisy, starfish ? 



14. (a) In what ways may the growth of bacteria be checked without killing 



them? 

 {b) In what ways may bacteria be killed ? 



15. In what ways may plant or animal breeders improve their stock ? 



